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//         对以下学员随机排序，生成一个新数组：
// ​	var arr = ["鹿晗","王俊凯","蔡徐坤","彭于晏","周杰伦","刘德华","赵本山"]；
var arr = ["鹿晗","王俊凯","蔡徐坤","彭于晏","周杰伦","刘德华","赵本山"];
function getRandom(min, max) {
            return Math.floor(Math.random() * (max - min + 1)) + min;
        }
        var arr1=[];
        while(arr1.length<arr.length){
            var suiji=getRandom(0,arr.length-1);
            if(arr1.indexOf(arr[suiji])==-1){
                arr1.push(arr[suiji]);
            }
        }
        console.log(arr1);
    </script>
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